Underscore

The underscore _ is the character with ASCII value 95. On the standard US 101/102 computer keyboard it shares a key with the hyphen on the top row, to the right of the 0 key. It is used as a diacritic mark in some African and Native American languages. The underscore is sometimes used as an underdot (Unicode: COMBINING DOT BELOW) in romanized Arabic and Hebrew. It is also often used instead of a space in computer operating systems and on the Internet in World Wide Web addresses. Some applications will automatically underline text surrounded by underscores: _underlined_ will render underlined. However, Microsoft Word changes text like _word_ to word. It is not a dash, and should not be used as such. A series of underscores (like _________) may be used to create a blank to be filled in on a form. It is also sometimes used to create a horizontal line, if no other method is available.